期刊
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
卷 116, 期 2, 页码 643-648出版社
SPRINGER
DOI: 10.1007/s00339-014-8252-3
关键词
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资金
- Natural Science Foundation of China (NSFC) [11104094, 61007019, 61275067, 91123035]
- National Basic Research Program of China (973 Program) [2011CB013003]
- Fok Ying Tung Education Foundation [132034]
- Open Fund of The State Key Laboratory of High Performance Complex Manufacturing [KL12-9]
In this paper, a kind of bi-layered asymmetrical split ring metamaterial was proposed as a circular polarization converter. Simulations and experiments at the microwave regime showed that the proposed structures can achieve the conversions from right-handed circularly polarized electromagnetic waves to left-handed ones and the reversed conversions in the opposite propagating direction. The linear to circular polarization transmission coefficients and the surface currents were investigated to understand the mechanism of the circular polarization conversions. Moreover, we optimized the proposed metamaterials by increasing the distance between the two metal layers. The proposed circular polarization converters have applications in microwave wave plates and metamaterial antennas.
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